> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tess.im/llms.txt
> Use this file to discover all available pages before exploring further.

# Model slugs

> Technical identifiers for AI models used in Cowork JSON imports and programmatic configuration

The **slug** (technical identifier) is the stable value Tess uses to reference an AI model in programmatic configuration — for example, when importing a Digital Employee via JSON in Cowork.

It is different from the **display name** (what you see in the UI, such as "Claude 4.5 Haiku"). In JSON, you use the slug (`claude-4.5-haiku`).

<Info>
  For per-model costs and other slugs, see [Models and Costs](/en/models-and-cost).
</Info>

## Why this matters in Cowork

When you build or import a Digital Employee **template pack** (JSON), the field that sets the model is `model_override`.

The importer already accepts this identifier: if the value is a model allowed in the target agent's configuration, Tess applies the override correctly. What was missing was publishing these identifiers clearly in the documentation.

## How to use it in Cowork JSON

In the pack (or Autopilot / Digital Employee configuration snippet), set the slug in `model_override`:

```json theme={null}
{
  "schema_version": "1.0",
  "template_type": "digital_employee_pack",
  "autopilots": [
    {
      "name": "Content Analyst",
      "model_override": "claude-4.5-haiku",
      "execution_mode": "agent"
    }
  ]
}
```

<Warning>
  The slug must exist in the **target agent's** model list (`model` / `agent_model` options). If the value is not available for that agent, the import warns and the override is not applied.
</Warning>

Accepted aliases in the pack: `model_override` or, in some exports, the `model` field with the same meaning.

## How to find the correct slug

Use any of these paths:

1. **Model picker in the UI** — the technical value saved on the employee / agent is the slug (same pattern as the table below).
2. **Export a pack** from a Digital Employee that is already configured — the exported JSON includes `model_override` with the current slug.
3. **Reference table** below — confirmed slugs for common text models.

## Reference table (text models)

| Display name               | Slug                         |
| -------------------------- | ---------------------------- |
| ChatGPT 5.4                | `gpt-5.4`                    |
| ChatGPT 5.4 Mini           | `gpt-5.4-mini`               |
| ChatGPT 5.4 Nano           | `gpt-5.4-nano`               |
| ChatGPT 5.2                | `gpt-5.2`                    |
| ChatGPT 5.1                | `gpt-5.1`                    |
| ChatGPT 5                  | `gpt-5`                      |
| ChatGPT 5 Latest           | `gpt-5-latest`               |
| ChatGPT 5 Mini             | `gpt-5-mini`                 |
| ChatGPT 5 Nano             | `gpt-5-nano`                 |
| Claude 4.6 Sonnet          | `claude-4.6-sonnet`          |
| Claude 4.6 Sonnet Thinking | `claude-4.6-sonnet-thinking` |
| Claude 4.5 Haiku           | `claude-4.5-haiku`           |
| Claude 4.5 Haiku Thinking  | `claude-4.5-haiku-thinking`  |
| Claude 4.5 Sonnet          | `claude-4.5-sonnet`          |
| Claude 4.5 Sonnet Thinking | `claude-4.5-sonnet-thinking` |
| Claude 4.1 Opus            | `claude-4.1-opus`            |
| Claude 4.1 Opus Thinking   | `claude-4.1-opus-thinking`   |
| Claude 4 Sonnet            | `claude-4-sonnet`            |
| Claude 4 Sonnet Thinking   | `claude-4-sonnet-thinking`   |
| Claude 4 Opus              | `claude-4-opus`              |
| Claude 4 Opus Thinking     | `claude-4-opus-thinking`     |
| Claude 3 Haiku             | `claude-3-haiku`             |
| Gemini 3.1 Flash Lite      | `gemini-3.1-flash-lite`      |
| Gemini 2.5 Pro             | `gemini-2.5-pro`             |
| Gemini 2.5 Flash           | `gemini-2.5-flash`           |
| Gemini 2.0 Flash           | `gemini-2.0-flash`           |
| Gemini 2.0 Flash Lite      | `gemini-2.0-flash-lite`      |
| Consensus                  | `consensus`                  |
| Kimi K2                    | `kimi-k2`                    |
| Tess 5                     | `tess-5`                     |
| Tess 5 PRO                 | `tess-5-pro`                 |
| Tess AI Light              | `tess-ai-light`              |
| Llama 4 Maverick           | `llama-4-maverick`           |
| Llama 4 Scout              | `llama-4-scout`              |

<Note>
  Availability depends on your plan, team/workspace policies, and the models enabled on the agent. Newer models follow the same slug pattern (lowercase, hyphens, and dots for the version — for example `claude-4.5-haiku`).
</Note>

## Related

<CardGroup cols={2}>
  <Card title="Detailed configuration" icon="sliders" href="/en/cowork/digital-employees/configuracao-detalhada/detailed-configuration">
    Model field in Advanced settings
  </Card>

  <Card title="Models and Costs" icon="coins" href="/en/models-and-cost">
    Lowest possible execution cost per model
  </Card>
</CardGroup>